Sounds a little like this recent paper; "RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval" https://arxiv.org/abs/2401.18059 https://arxiv

Sounds a little like this recent paper; "RAPTOR: Recursive Abstractive Processing for Tree-Organized Retrieval" https://arxiv.org/abs/2401.18059 https://arxiv.org/abs/2401.18059